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eightieth — [āt′ē ith] adj. [ME eightetithe: see EIGHTY & TH2] 1. preceded by seventy nine others in a series; 80th 2. designating any of the eighty equal parts of something n. 1. the one following the seventy ninth 2 … English World dictionary

Eightieth — Eight i*eth, a. [From {Eighty}.] 1. The next in order after seventy ninth. [1913 Webster] 2. Consisting of one of eighty equal parts or divisions. [1913 Webster] … The Collaborative International Dictionary of English

Eightieth — Eight i*eth, n. The quotient of a unit divided by eighty; one of eighty equal parts. [1913 Webster] … The Collaborative International Dictionary of English

eightieth — /ay tee ith/, adj. 1. next after the seventy ninth; being the ordinal number for 80. 2. being one of 80 equal parts. n. 3. an eightieth part, esp. of one (1/80). 4. the eightieth member of a series. [1350 1400; ME eightetithe, OE… … Universalium

eightieth — [[t]e͟ɪtiəθ[/t]] ♦♦ ORD The eightieth item in a series is the one that you count as number eighty. Mr Stevens recently celebrated his eightieth birthday … English dictionary

eightieth — 1. adjective /ˈeɪtiəθ/ The ordinal form of the number eighty. Syn: 80th 2. noun /ˈeɪtiəθ/ a) The person or thing in the eightieth position. b) One of eighty equal parts of a whole … Wiktionary